VST use scratch buffers for processing.

[ardour.git] / libs / ardour / ardour / async_midi_port.h

diff --git a/libs/ardour/ardour/async_midi_port.h b/libs/ardour/ardour/async_midi_port.h
index e7eeb8ee30a15327b94bd05d854d63610eb32600..cbe9bb1a9c73ee762c33304ae275e9ea4d81f04a 100644 (file)
--- a/libs/ardour/ardour/async_midi_port.h
+++ b/libs/ardour/ardour/async_midi_port.h
@@ -22,18 +22,20 @@
 #include <string>
 #include <iostream>
 
+#include <boost/function.hpp>
+
 #include "pbd/xml++.h"
 #include "pbd/crossthread.h"
 #include "pbd/signals.h"
 #include "pbd/ringbuffer.h"
 
 #include "evoral/Event.hpp"
-#include "evoral/EventRingBuffer.hpp"
 
 #include "midi++/types.h"
 #include "midi++/parser.h"
 #include "midi++/port.h"
 
+#include "ardour/event_ring_buffer.h"
 #include "ardour/libardour_visibility.h"
 #include "ardour/midi_port.h"
 
@@ -53,10 +55,23 @@ class LIBARDOUR_API AsyncMIDIPort : public ARDOUR::MidiPort, public MIDI::Port {
         /* called from non-RT context */
     
        void parse (framecnt_t timestamp);
-        int write (const MIDI::byte *msg, size_t msglen, MIDI::timestamp_t timestamp);
+       int write (const MIDI::byte *msg, size_t msglen, MIDI::timestamp_t timestamp);
         int read (MIDI::byte *buf, size_t bufsize);
+       /* waits for output to be cleared */
        void drain (int check_interval_usecs);
-       int selectable () const { return xthread.selectable(); }
+
+       /* clears async request communication channel */
+       void clear () {
+               _xthread.drain ();
+       }
+
+        CrossThreadChannel& xthread() {
+                return _xthread;
+        }
+
+       /* Not selectable; use ios() */
+       int selectable() const { return -1; }
+       void set_timer (boost::function<framecnt_t (void)>&);
 
        static void set_process_thread (pthread_t);
        static pthread_t get_process_thread () { return _process_thread; }
@@ -65,12 +80,26 @@ class LIBARDOUR_API AsyncMIDIPort : public ARDOUR::MidiPort, public MIDI::Port {
   private:     
        bool                    _currently_in_cycle;
         MIDI::timestamp_t       _last_write_timestamp;
+       bool                    have_timer;
+       boost::function<framecnt_t (void)> timer;
        RingBuffer< Evoral::Event<double> > output_fifo;
-        Evoral::EventRingBuffer<MIDI::timestamp_t> input_fifo;
-        Glib::Threads::Mutex    output_fifo_lock;
-       CrossThreadChannel      xthread;
-
-        void flush_output_fifo (pframes_t);
+        EventRingBuffer<MIDI::timestamp_t> input_fifo;
+        Glib::Threads::Mutex output_fifo_lock;
+       CrossThreadChannel _xthread;
+
+       int create_port ();
+
+       /** Channel used to signal to the MidiControlUI that input has arrived */
+       
+       std::string _connections;
+       PBD::ScopedConnection connect_connection;
+       PBD::ScopedConnection halt_connection;
+       void flush (void* jack_port_buffer);
+       void jack_halted ();
+       void make_connections ();
+       void init (std::string const &, Flags);
+
+    void flush_output_fifo (pframes_t);
 
        static pthread_t _process_thread;
 };